"Coo-ee."

Progress, Volume II, Issue 6, 1 April 1907, Page 225

"Coo-ee."

We reproduce photos of the Coo-ec, one of the fastest speed boats on Sydney Harbour One picture was taken when she was being slung overboard on return from Melbourne, where she covered herself with honours at their recent annual regatta. She is engmed with the well-known New York Fairbanks motor rated at 8/12 Horse-power These engines have a guaranteed consumption of from one pint, to one and a third pints of gasoline per horse-power, depending on the grade of oil used In the matter of lubrication these motors aie well equipped • the oil is first led into the cylinder thence through a hollow piston and oil passage down the connecting rod oil tube and direct to the crank pin. Besides this there is a separate sight feed lubricator on each crank chamber Of course a two-cycle engine is famous and unique in the matter of silent running This is obvious, since with the entire absence of valve gear and hammering cams — together With the continual impulse — every stroke results in remarkably noiseless, vibrationless running The Coo-ec attains a speed of 16 miles an hour — a truly wonderful perfprmance and one which calls for comment on the 'hull. This latter 1^ throughout of cedar-35' 0" long and 6' 6" b^am-the water line is well designed, and at top speed presents a theoretically true wedge shape, which cleaves the water with a minimum of effort-this produces a

peculiar lifting action, which causes the stern to lie on the water, thus utilising the important action of the hydroplane, which is now revolutionising motor boat design. The craft is under offer to Messrs Holmes and Allen, and we may hope to soon have the pleasure of witnessing the performance of a real speed boat.